What to Consider Before Buying a Cordless Drill

Start with what you want to do with the tool. Assembling furniture, installing cabinet hardware, and building garage shelves require different amounts of drilling and screw driving. A cordless drill/driver handles both, but the size of the holes, the materials, and the space you have to work should guide what you buy.

Think about the projects after this one, too. A drill used occasionally for household repairs deserves a different buying decision than one used regularly to build storage or workbenches. Before comparing brands, write down the jobs you expect it to handle. That list is more useful than choosing the drill with the biggest number on the box.

Match the drill to the work and your workspace

For cabinet hardware, control and access matter. For a workbench, you may need to drill larger holes and drive longer screws. A larger drill can offer capacity you will use, but it also needs to fit where you are working. Inside a narrow cabinet, the length of the drill with the bit installed can become the deciding factor.

Make sure you are comparing the right tools. A drill/driver makes holes and drives screws. An impact driver is worth considering when repeated screw driving becomes a substantial part of the work. A hammer drill adds a forward hammering action for drilling into masonry. Buying a drill-and-impact-driver kit may make sense for building projects, but occasional furniture assembly does not automatically call for two tools.

The chuck—the part that grips the bit—is another detail worth understanding. A ½-inch chuck accepts a larger bit shank than a ⅜-inch chuck. That measurement does not tell you the largest hole the drill can make. Check the manufacturer's drilling limits for the material and bit you intend to use.

Control deserves as much attention as capacity. The adjustable clutch limits the turning force when driving screws, helping you avoid sinking them too far. It still takes a suitable setting and some care. More clutch settings do not automatically make one drill a better purchase.

Two speed ranges and a variable-speed trigger give you ways to suit the drill to the task. The slower range is useful when more turning force is needed; the faster range suits some drilling jobs. Follow the bit and drill instructions rather than assuming faster is always better.

Battery labels can muddy the comparison. DeWalt's 20V MAX batteries are rated at 18 volts nominal, so “20V” versus “18V” alone is not a reason to choose one brand. If you already own cordless tools, check the exact battery system before buying. A familiar brand name does not establish compatibility.

Once those questions are settled, individual models become easier to compare.

Cordless drill options to compare

These examples show different combinations of size, battery system, and features. They are not ranked. The comparison uses published manufacturer information rather than hands-on testing.

You will see “brushless” on many drill listings. It describes how the tool produces power and can offer efficiency and runtime advantages. It does not tell you how comfortable the drill feels, how well it fits your workspace, or whether the package is worth the additional cost.

If possible, hold the drill with a battery installed before buying. Check the grip, balance, trigger, and forward/reverse switch. A weight listed for the bare tool is not the weight you will be holding during a project.

Battery capacity matters here, too. Amp-hours, shown as Ah, describe capacity rather than voltage. Within a compatible battery system, a higher-capacity pack generally offers more runtime, but size, weight, and the work itself affect the tradeoff. For occasional repairs, paying for the largest battery may solve a problem you do not have.

Price the setup you will actually use

The drill price is only part of the cost. Compare packages on equal terms: a tool sold without a battery and charger is different from a kit that includes both. Check the exact model number and package contents, especially when a retailer offers several versions of the same drill.

Then account for the bits you need. Drill bits make holes; driver bits turn screws. Match both to the material or fastener. A large accessory assortment is not much of a bargain if it lacks the sizes your project requires.

For example, installing cabinet handles calls for the correct hole size and repeatable placement. A simple drilling template may do more for the finished result than additional drill features. Building shelves may call for pilot-hole bits, driver bits that fit the screw heads properly, and clamps to hold the pieces steady.

Buy for the work in front of you. You can add specialty bits when a project actually requires them.

Before starting, read the drill's manual, secure the material, and remove the battery before changing bits or attachments. Wear eye protection and use the auxiliary handle where the manufacturer requires it. A bit that catches can twist the drill unexpectedly. Small pieces need clamping; holding them in your free hand can allow them to spin.

Furniture assembly and drilling accessible, secured material can be reasonable DIY work. Drilling into a wall requires knowing what is behind it and choosing fasteners for the wall construction and load. Hidden wiring or plumbing, structural changes, and heavy overhead installations can call for qualified help. Owning a stronger drill does not settle those questions.

If you only need the tool for one small job, compare borrowing or rental costs before buying. If you already have a working drill that accepts the necessary bits, the useful purchase may be better accessories.

Check your preferred tool retailers to compare current drill, battery, and accessory pricing before you buy.